Steps

1

Pick one or two leaves when the lettuce starts to form a heart. The lettuces that grow will last longer before going to seed.

2

Leave three to four lower outer leaves attached to the base of the lettuce plant when you pick the heart itself. This will stimulate the lettuce plant to regrow some small lettuces, leaving you with a second crop.

3

Keep well watered and fertilised as usual. Harvest your second crop or longer lasting lettuce when needed.